the answer is that is where pope benedict is going to make his retirement home. tomorrow, the pope will hold his weekly audience, and then later in the day, he will preside over ash wednesday mass, marking the beginning of lent. that mass was supposed to be held in a small church in rome. it's been move here to st. peter's basilica to accommodate the thousands who are expected to attend what could well be the pope's last public mass. brian? >> all those pieces and clues now apparent. it will be an interesting 16 days ahead. anne thompson in vatican city, thanks. >>> still ahead as we continue on a busy tuesday night, the cruise ship nightmare in the gulf of mexico. an increasingly ugly scene on board. five working toilets, 3,000 people. that's just the start of it. >>> we are back now with some of the horror stories we are hearing, the stories emerging about some of the 4200 passengers and crew on board the carnival cruise ship "triumph." it all started when the ship caught fire, lost power sunday night, setting off an awful chain of events on board, including sw